I was thinking about saying beware the Bandersnatch! 
But I didn't! lol
I'll keep this simple:
If one is trying to process a huge file, such as an image, determine AHEAD of time, the size of the resultant file...
AND THE intermediate processing...
And compare that to your available virtual memory(on the hard drive) and actual memory.
Or, you may lock up the computer and lose the kdm display manager.
Case in point:
I had to provide a scanned image, and thought that the more detail, pixels, the better.
So I scanned at the highest resolution, using GIMP and xsane and an HP Officejet 6600.
It did that.
But then it had to create the image, a jpeg, from the scanned information.
Basically a "transitioning" situation in which the original image was there and the new image was being processed so.... a dynamic two images for one.
I got three warnings by the system that it was getting really low on memory.
The last one said...oops.... you have zero memory available.
The computer just stopped.
So, I manually shut down ....and upon reboot the kdm didn't do anything.
I got the image that is on the desktop and that was it.
Several reboots, and still nothing.
Knoppix to the rescue! I hooked up the external, storage, hard drive and used Knoppix to move the few new and unsaved, externally, files from the Kubuntu installation to the external hard drive.
I also DELETED a gigabyte of stuff, images, to free up space.
I then shut down, and the system automatically came up in repair mode, I had it check for unused files, and "clean up".
Upon then going to "normal boot"... the system appeared, however, the display was the "generic Ubuntu driver"
BUT the important thing was that it was working!
The video driver icon was in the lower panel, I used it to choose the appropriate driver, after it did it's thing, I restarted and all is back to normal.
BEWARE the size of a huge file that you are processing, it will actually be a dynamic changing of the original file to the new file and if you get warnings....
stop.
and figure out another way or reduce the size of the output file.
just a thought.
And...to the Kubuntu devs.........Kubuntu is a remarkably robust OS...it just was never really designed to handle this persons level of incompetence!
woodsmoke
But I didn't! lol
I'll keep this simple:
If one is trying to process a huge file, such as an image, determine AHEAD of time, the size of the resultant file...
AND THE intermediate processing...
And compare that to your available virtual memory(on the hard drive) and actual memory.
Or, you may lock up the computer and lose the kdm display manager.
Case in point:
I had to provide a scanned image, and thought that the more detail, pixels, the better.
So I scanned at the highest resolution, using GIMP and xsane and an HP Officejet 6600.
It did that.
But then it had to create the image, a jpeg, from the scanned information.
Basically a "transitioning" situation in which the original image was there and the new image was being processed so.... a dynamic two images for one.
I got three warnings by the system that it was getting really low on memory.
The last one said...oops.... you have zero memory available.
The computer just stopped.
So, I manually shut down ....and upon reboot the kdm didn't do anything.
I got the image that is on the desktop and that was it.
Several reboots, and still nothing.
Knoppix to the rescue! I hooked up the external, storage, hard drive and used Knoppix to move the few new and unsaved, externally, files from the Kubuntu installation to the external hard drive.
I also DELETED a gigabyte of stuff, images, to free up space.
I then shut down, and the system automatically came up in repair mode, I had it check for unused files, and "clean up".
Upon then going to "normal boot"... the system appeared, however, the display was the "generic Ubuntu driver"
BUT the important thing was that it was working!
The video driver icon was in the lower panel, I used it to choose the appropriate driver, after it did it's thing, I restarted and all is back to normal.
BEWARE the size of a huge file that you are processing, it will actually be a dynamic changing of the original file to the new file and if you get warnings....
stop.
and figure out another way or reduce the size of the output file.
just a thought.
And...to the Kubuntu devs.........Kubuntu is a remarkably robust OS...it just was never really designed to handle this persons level of incompetence!
woodsmoke
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